CVE-2026-44586: CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') in siyuan-note siyuan
CVE-2026-44586 is a high-severity stored cross-site scripting (XSS) vulnerability in the SiYuan personal knowledge management system versions 2. 1. 12 up to but not including 3. 7. 0. The vulnerability arises because the Bazaar marketplace component renders package author metadata from a public feed into HTML without proper escaping. In the desktop app, this leads to stored XSS. Due to the Electron app's configuration (nodeIntegration: true and contextIsolation: false), successful exploitation allows execution of arbitrary Node. js code on the host system. This vulnerability is fixed in version 3.
AI Analysis
Technical Summary
SiYuan versions >= 2.1.12 and < 3.7.0 contain a stored cross-site scripting vulnerability in the Bazaar marketplace feature. The vulnerability is caused by improper neutralization of input when rendering package author metadata from the public bazaar stage feed into HTML without escaping. Because the SiYuan desktop app uses Electron with nodeIntegration enabled and contextIsolation disabled, an attacker can inject malicious scripts that execute Node.js APIs, leading to remote code execution on the host machine. The vulnerability is tracked as CWE-79 (Improper Neutralization of Input During Web Page Generation) and CWE-94 (Improper Control of Generation of Code). The issue is resolved in SiYuan version 3.7.0.
Potential Impact
Successful exploitation results in stored XSS that allows an attacker to execute arbitrary code on the host system via Node.js APIs due to Electron's insecure configuration. This can lead to full compromise of the affected host running the vulnerable SiYuan desktop application. The CVSS v3.1 base score is 8.3 (high), reflecting network attack vector, high impact on confidentiality, integrity, and availability, and requiring user interaction with high attack complexity.
Mitigation Recommendations
This vulnerability is fixed in SiYuan version 3.7.0. Users should upgrade to version 3.7.0 or later to remediate this issue. Since the product is not a cloud service, remediation requires applying the official update. Patch status is confirmed fixed in version 3.7.0. No other mitigations are indicated by the vendor advisory.
CVE-2026-44586: CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') in siyuan-note siyuan
Description
CVE-2026-44586 is a high-severity stored cross-site scripting (XSS) vulnerability in the SiYuan personal knowledge management system versions 2. 1. 12 up to but not including 3. 7. 0. The vulnerability arises because the Bazaar marketplace component renders package author metadata from a public feed into HTML without proper escaping. In the desktop app, this leads to stored XSS. Due to the Electron app's configuration (nodeIntegration: true and contextIsolation: false), successful exploitation allows execution of arbitrary Node. js code on the host system. This vulnerability is fixed in version 3.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
SiYuan versions >= 2.1.12 and < 3.7.0 contain a stored cross-site scripting vulnerability in the Bazaar marketplace feature. The vulnerability is caused by improper neutralization of input when rendering package author metadata from the public bazaar stage feed into HTML without escaping. Because the SiYuan desktop app uses Electron with nodeIntegration enabled and contextIsolation disabled, an attacker can inject malicious scripts that execute Node.js APIs, leading to remote code execution on the host machine. The vulnerability is tracked as CWE-79 (Improper Neutralization of Input During Web Page Generation) and CWE-94 (Improper Control of Generation of Code). The issue is resolved in SiYuan version 3.7.0.
Potential Impact
Successful exploitation results in stored XSS that allows an attacker to execute arbitrary code on the host system via Node.js APIs due to Electron's insecure configuration. This can lead to full compromise of the affected host running the vulnerable SiYuan desktop application. The CVSS v3.1 base score is 8.3 (high), reflecting network attack vector, high impact on confidentiality, integrity, and availability, and requiring user interaction with high attack complexity.
Mitigation Recommendations
This vulnerability is fixed in SiYuan version 3.7.0. Users should upgrade to version 3.7.0 or later to remediate this issue. Since the product is not a cloud service, remediation requires applying the official update. Patch status is confirmed fixed in version 3.7.0. No other mitigations are indicated by the vendor advisory.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- GitHub_M
- Date Reserved
- 2026-05-06T21:49:12.425Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a062b6cec166c07b00def8d
Added to database: 5/14/2026, 8:07:08 PM
Last enriched: 5/14/2026, 8:21:43 PM
Last updated: 5/14/2026, 9:09:50 PM
Views: 2
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